Separable fastener



F. s CARR. SEPARABLE FASTENEFL.

APPLICATION FILED JAN- 15, 1920- Patented Aug. 9, 1921.

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preferred embodimentof one form of my UNITED ITE PATENT, .E LCET FRED sflcAnR, or lvnw roimmass'acnusnrrs, assrenoa To CARR ras'rnnna COMPANY. or cameraman, nassacnnsnrrs, A conroaarron or MAINE.

, SEPABABLE FASTENEB.

To all whom it may concern: M

Beit known that. I, FRED S. CARR, a citizen of the United States, and a resident of Newton, in the county of Middlesex and State of Massachusetts, have invented an Improvement in Separable Fasteners, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the draw-.

ings representing like parts.

This invention-pertains to improvements in separable fasteners, and more particularly to separable fasteners of' the threeside lock typefadapted to be separated by relative tipping movement. of stud and socket in a predetermined manner only.

More particularly this invention pertains to improvements in the invention shown in the applications of Lars Andrew Larssen, filed herewith.

It is among the objects of the present invention to provide a modification of the invention shown in the applicationsabove referred to in which'stud and socket'cannot be separated by an axial strain.

In the drawings, wherein I have shown a invention g V Figure 1 is a front elevation of a portion of a piece of fabric having a socket secured thereto and a stud entered in the socket;

Fig. 2 is a section on the line'22 of Fig. 1; Fig. 3 is a rear elevationof the socket; Fig. 4 is a rear elevation of the preferred form of back plate shown in Fig. 2; i

Fig. 5 is an end elevation of the back.

plate shown in Fig. 4:; and

Fig. 6 is an end elevation of the preferred form of stud shown in the other figures.

Referring to the drawings and to the preferred form of my invention selected for illustrative purposes, I have provided a stud of the general character shown and claimed in the applications above referred to, but having a recessed portion herein shown as a second neck or groove 7, the stud being provided with a head 8 and what for the purpose of convenience I may term a primary'neck 9, and preferably being slotted in the general manner shown in the copending applications above referred to.

Cotiperating with the preferred form of stud hereinbefore described, I provide a socket which preferably takes the form best Specification state men. tQ d' 1921 Application filed January 1e, 1920. Serial no. 351,773. 7

shown inFig. 2, including a plate 10 havaperturetherein through which the v of the stud may pass when'-.com-

ating with that portion of the socket engaging theprimary neck 9 of the stud, I preferably providea second part adapted tov engage the recess or secondary-neck 7 ofthe stud. This secondary part may conveniently take the form of a bead or flange 11, which may conveniently extend approximately onehalf the distance around the stud, andwhich may conveniently be formed by turning inwardly the curb 1 or strain-receiving part 12 of the socket, this curb preferably being died rearwardlyzfrom a plate 13. The plate 10 and the plate 13 may conveniently'be secured together. by prongs 14 projecting rearwardly-from the plate 10 and clenched I I Ver the plate 13,

While I-have shown and described a pre ferred form of one embodiment of my 1nvention, it will be understood that changes involving omission, alteration, substitution and reversal of parts, and even changes in the mode of operation, may be made without departing from the scope of my invention, which is best claims.

Claims; g 1. A stud comprising, in combination, a

head, a primary neck and a secondary recess, said stud beingresilient, and providlng a greater degree of res liency ad acent the primary neck than adjacent said recess.

2. A stud comprising, in combination, a

head, a primary neck, a secondary neck anda base portion, said studsplit axially and said secondary neck being located more closely to said base than said primary neck.

3. A separable fastener comprising, in

combination, a resilient stud, circular in cross-section; a cooperating socket forengagement with said stud; said stud and socket inseparable by direct axial relative movement and separable by relative tipping movement.

separable fastener comprising, in,

combination, a resilient stud, circular in cross-section, a cooperating socket for en-' gageinent with said 'stud; said stud and defined in the following" socket inseparable by direct axial relative movement and separable by relative tlpping movement in apredetermined direction only.

5. A separable fastener comprising, in combination, a stud having a head and a neck and a recessed portion; a cooperating socket providing an aperture having marginal portions for engagement with said neck and a cooperating part for engagement in said recessed portion,-'said stud and socket separable by relative tipping movement in one direction only.

6. A separable fastener comprising, in

combination, a stud having a head, a neck and a recessed portion, said stud-split longitudinally to provide resiliency; and a socket providing a a-W plate having an aperture therein With neck-engaging marginal portions, and a second piece carrying a recess-engaging part, said plate and said second piece located on opposite sides of the carrying fabric and secured together by clenched prongs.

In testimony whereof, I have signed my name to this specification.

"FR-ED S. CARR. 

